The use of the phrase "going around" is specified by ICAO Doc 4444 as the phrase to use when we're aborting the landing and heading for
- another lap in the traffic pattern if we're on a visual or VFR approach, or
- the appropriate missed approach procedure if we're on an instrument approach
However, in the US, I often hear the pilot saying "going missed" when breaking off an instrument approach. Is this standard phraseology in the US, or another one of those non-standard phrases which have gained footing? The 7110.65 only mentions the instruction "go around" (which incidentally is analogous, traffic pattern if visual, missed approach if on instruments), but doesn't say anything about the appropriate pilot phraseology. I couldn't find any reference in the AIM (chapter 4 section 2) either.
(I also often hear just "missed approach", which I suppose would be appropriate when checking back in with approach, but not with the tower, although feel free to clarify that for me as well)